Commercial Unit Heaters

Lennox Unit Heaters

Lennox Unit Heaters

LF24 Unit Heater

Features:

  • Heating capacities from 30,000-390,000 Btuh
  • Compact cabinet design on 30,000-75,000 Btuh models
  • Ideal for a wide range of commercial and residential applications
  • Stainless steel heat exchanger (for 100,000 Btuh and greater models) Sidewall venting eliminates roof penetrations
  • Self-diagnostic board with LED display improves troubleshooting efficiency and accuracy
  • Up to 81% thermal efficiency Up to 81% thermal efficiency

LF24 Unit Heater Compact Series Aluminized Steel Heat Exchanger

 
Model Heating (BTUH) Steady State CFM
  Input Output Efficiency  
LF24-30A 30,000 24,300 81.0% 535
LF24-45A 45,000 36,500 81.0% 750
LF24-60A 60,000 48,000 80.0% 830
LF24-75A 75,000 60,000 80.0% 950

Lennox Unit Heaters

** “A” Denoted aluminized steel heat exchanger. All Models are 115 volts, 60 hertz, 1 phase.

 

LF24 Models - with Aluminized Steel Heat Exchanger 83%

 
Model Heating (BTUH) Steady State Efficiency CFM
  Input Output Natural Propane Natural Propane  
LF24-100S 100,000 80,500 82,000 80.5% 82.0% 1900
LF24-100A 100,000 80,500 82,000 80.5% 82.0% 1900
LF24-115S 115,000 92,000 92,000 80.0% 80.0% 1900
LF24-115A 115,000 92,000 92,000 80.0% 80.0% 1900
LF24-145S 145,000 116,000 116,000 80.0% 80.0% 1900
LF24-145A 145,000 116,000 116,000 80.0% 80.0% 1900
LF24-175S 172,500 138,000 138,000 80.0% 80.0% 2200
LF24-175A 172,500 138,000 138,000 80.0% 80.0% 2200
LF24-200S 195,000 156,000 156,000 80.0% 80.0% 2200
LF24-200A 195,000 156,000 156,000 80.0% 80.0% 2200
LF24-230S 230,000 184,000 184,000 80.0% 80.0% 4400
LF24-230A 230,000 184,000 184,000 80.0% 80.0% 4400
LF24-250S 250,000 201,250 205,000 80.5% 82.0% 4400
LF24-250A 250,000 201,250 205,000 80.5% 82.0% 4400
LF24-300S 300,000 241,000 246,000 80.5% 82.0% 4400
LF24-300A 300,000 241,000 246,000 80.5% 82.0% 4400
LF24-345S 345,000 276,000 281,200 80.0% 81.5% 4400
LF24-345A 345,000 276,000 281,200 80.0% 81.5% 4400
LF24-400S 390,000 312,000 312,000 80.0% 80.0% 4400
LF24-400A 390,000 312,000 312,000 80.0% 80.0% 4400

Unit Heaters Mississauga

** “S” denotes stainless steel heat exchanger. “A” denotes aluminized steel heat exchanger. All Models are 115 volts, 60 Hertz, 1 Phase.

Download Specs (PDF)

 

LD24 Duct Furnace

Features:

  • Heating capacities from 75,000-300,000 Btuh
  • Specially designed for applications requiring duct systems
  • Compact, lightweight cabinet with suspension points for easy overhead installation
  • Stainless steel heat exchanger is available for longer product life
  • Sidewall venting eliminates roof penetrations
  • Self-diagnostic board with LED display improves troubleshooting efficiency and accuracy
  • 80% thermal efficiency

LD24 HEAT EXTCHANGER 78%

 
Model Heating (BTUH) Steady State CFM
  Input Output Efficiency  
LD24-75S 75,000 60,000 80.0% 780-2700
LD24-75A 75,000 60,000 80.0% 780-2700
LD24-100S 100,000 80,000 80.0% 870-3700
LD24-100A 100,000 80,000 80.0% 870-3700
LD24-125S 125,000 100,000 80.0% 1020-4700
LD24-125A 125,000 100,000 80.0% 1020-4700
LD24-150S 150,000 120,000 80.0% 1320-5600
LD24-150A 150,000 120,000 80.0% 1320-5600
LD24-200S 200,000 160,000 80.0% 1480-4230
LD24-200A 200,000 160,000 80.0% 1480-4230
LD24-250S 250,000 200,000 80.00% 1850-5290
LD24-250A 250,000 200,000 80.00% 1850-5290
LD24-300S 300,000 240,000 80.0% 2220-6200
LD24-300A 300,000 240,000 80.0% 2220-6200

Lennox Mississauga

** “S” denotes stainless steel heat exchanger. “A” denotes aluminized steel heat exchanger. All Models are 115 volts, 60 Hertz, 1 Phase.

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T-Class™ Separated Combustion Unit Heater

Ideal for hard-to-heat applications requiring fresh air for combustion.

Features:

  • Heating capacities from 45,000-300,000 Btuh
  • Compact cabinet design on 45,000 Btuh model
  • Ideal for hard-to-heat applications where excessive dirt, dust or humidity or negative pressure is a concern
  • Durable tubular heat exchanger
  • Hinged door allows easy access to components
  • Stainless steel heat exchanger is available for longer product life
  • Sidewall venting eliminates roof penetrations
  • Self-diagnostic board with LED display improves troubleshooting efficiency and accuracy

TUA MODELS-Seperated Combustion Unit Heater 81%

 
Model Heating (BTUH) Thermal Efficiency CFM
  Input Output
Natural
Output
Propane
Natural Propane  
TUA045S 45,000 36,200 36,200 81.0% 81.0% 750
TUA100S 100,000 81,000 82,700 81.0% 82.0% 2435
TUA125S 125,000 101,500 101,500 81.0% 81.0% 2435
TUA150S 150,000 120,000 121,500 80.0% 81.0% 2955
TUA250S 240,000 194,400 196,800 81.0% 82.0% 5215
TUA300S 300,000 240,000 243,000 80.0% 81.0% 5215

best Unit Heaters

 

Download Specs (PDF)